Stratton Custom Rifles 7SS

Justice1327

Justice1327

Well-Known Member
Joined
Jan 29, 2021
Messages
3,056
Location
USA
Just playing around today.
First two were bore sighters…not shown.
ELDX 162
COAL: 2.850
RL26
SCR 18"
Plan to explore the 62.5-63.5 range
GRT predicted 2933… I could play around with the bulk density and humidity and it might've matched up

*Update*
I think at 63.3 gr It opens up, but it was kind of windy and I was probably getting tired after working all day in the fields . I don't know… I'll explore it again later. Pics of the Brass are the 63.3 grain load.
 

Attachments

  • IMG_6600.jpeg
    IMG_6600.jpeg
    443.7 KB · Views: 168
  • IMG_6601.jpeg
    IMG_6601.jpeg
    328.9 KB · Views: 156
  • IMG_6607.jpeg
    IMG_6607.jpeg
    276 KB · Views: 131
  • IMG_6606.jpeg
    IMG_6606.jpeg
    256.8 KB · Views: 137
  • IMG_6604.jpeg
    IMG_6604.jpeg
    136.4 KB · Views: 137
  • image1 (1).jpeg
    image1 (1).jpeg
    305.7 KB · Views: 143
  • image0 (2).jpeg
    image0 (2).jpeg
    131 KB · Views: 113
  • IMG_6610.png
    IMG_6610.png
    183 KB · Views: 100
  • Initial Tests for 7SS.jpeg
    Initial Tests for 7SS.jpeg
    77.8 KB · Views: 119
Last edited:
Phil Rizzo said:
Phenomenal.
I'm running a 160 AB in mine at 3000 with EIGHT ! 8) more inches of straight pipe.
N565
Click to expand...
Yeah it is on the edge for mine. I will back it down tomorrow and see how it groups at 2&3 hundred yds.
I wonder if the SAUM guys can match this😜
 
Not sure why I can't update my original post. It's only been one day.
**Update**
I thought I found a flat spot but when I went to verify it, I had an increase of ~ 20 ft./s.
Barrel had 30 shots on it and was only slightly warm. Barrel has a total of 50 shots.
I will test some more but all of this is with virgin Brass and I don't give too much to load development on the initial 100 to 150 rounds.
Not making an excuse, but there's several variables that play here.I've never had an 18 inch barrel gun that kicks this much… it's not horrendous, but it gives a fairly good thump. Also, I'm using a new trigger tech diamond two-stage. Probably too light, but will adjust it. Only using a SWFA/SS 10x scope until I get done with testing. I think the load is good at 62.35…GRT predicted 62.56…not too far off.

What are your thoughts for the 20 ft./s increase in velocity.
 

Attachments

  • 7SS velocitychart.jpeg
    7SS velocitychart.jpeg
    99.9 KB · Views: 46
  • IMG_6620.jpeg
    IMG_6620.jpeg
    147.8 KB · Views: 40
  • IMG_6618.jpeg
    IMG_6618.jpeg
    229.4 KB · Views: 37
Last edited:

Similar threads

H
7SS
Replies
5
Views
641
HANDLER
H
J
7ss Loading Questions
Replies
3
Views
642
BillNye
BillNye
J
7ss question
Replies
4
Views
800
DUSTY NOGGIN
D
W
Anybody running a 7ss?
Replies
2
Views
379
wolf8298
W
shphtr
Sherman 7ss + HH + RL26
Replies
10
Views
2K
hereinaz
hereinaz

Recent Posts

Top